Speculum.



C.'VERBSKY.

SPEGULUM.- APPLICATION FILED JAN. 1:. 191a.

Patented Marf 26, 1918.

CHARLES VERBSKY, OF LAKEWOOD, OHIO.

SPEGULUM.

Application filed January 11, 1918.

To all whom it may concern:

Be it known that 1, CHARLES Vnnnsnr, a citizen of the United States, residing at Lakewood, in the county of, Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Specula, of which the following is a specification.

This invention relates to specula and especially to specula of the duck bill type, having a pair of articulated blades which are capable of being opened and closed while in use for "the desired purposes.

The object of the invention is to provide improved means for adjusting the position or angles of the blades, and to provide a device which can be easily manipulated, and which will accomplish danger of slipping and which can be easily operated with either hand, preserving also a wide space at the external opening of the instrument.

ii. further object of the invention is to provide a convertible speculum which can be converted into an instrument of the onebladed type, the two blades being locked or fastened together at a suitable angle for the manipulation of the device as one piece.

Other features of novelty oradvantage will appear from the following description and the accompanying drawings.

In the drawing Figure l is a perspective view of the device. Fig. 2 is a central longitudinal section. Fig. 3 is a cross section. Fig. 4c is a perspective view of the device converted into a single bladed angular instrument.

Referring specifically to the drawings, the device consists of two blades indicated at 6 and 7 the main parts of which are of the ordinary duck bill type. The member 7 I will call the relatively fixed blade and 6 the adjustable blade, the rear end of the former being curved outwardly or flared to a somewhat greater extent than the latter, as indi: cated at 8, and the blade 6 may be slotted at the rear end as indicated at 9. These two blades are hinged together at their rear ends from the ends of a bail 11 which is looped at the arch to form an eye 12. The pins 10 snap or slip into holes at the rear meeting corners of the blades, as shown, and thereby hinge the blades together. A curved screw 13 works loosely through the eye 12, and receives a nut 14 to take up the screwrand exert pressure to spread the blades. The

Specification of Letters Patent.

. is provided near its hinged a. dilation without by means of pins or projections 10 projecting Patented trai as, rare.

Serial No. 21 1,346.

inner end of this screw is hooked as shown at 15, the hook being 533 shaped, so that its bill may be entered in the notch 16 and a hole 17 at the end of the extended part 8 of the blade 7. This connection permits the screw to be disengaged from the hole quite readily, after the nut 1 is taken off and the bail 11 swung clear of the screw 13. The screw can then be swung out and detached from the blade, but it will stay in place ordinarily. The relatively adjustable blade points with outwardly extending shoulders 18, so located that the bail 11 will stop against these shoulders when the pressure of the nut is applied thereto, causing the bail to then act as a lever to swing the blades open, and in u e as a duck bill specula the nut may be operated by hand to produce the required expansion or dilation.

For use as a rigid or single bladed instrument the blades are first separated. This is done by taking off the nut 11% and removing the screw 13. Then the legs of the bail are sprung apart to withdraw the hinge pins from the holes in which they fit. This disjoints the blades and they fall apart. Or, the bail may be disconnected first, and then the screw unhooked without taking off the nut 14. After the blades are disjointed they are then reversed, and the rear end of the blade 7 is then lapped or fitted within the rear end of the blade 6. Then, the pins 10 of the bail are slipped into the registering holes in the blades, which are thus fastened together. The curvature or concavity of the rear ends of the blades is substantially the same so that they fit closely one into the other as shown in Fig. 4t, and after being hooked together by the bail as shown and described they cannot turn with respect to each other, but form a substantially rigid angular speculum, one blade of which may be used as a handle and the other as a dilator. Fig. 4 shows the instrument in this position, the bail being preferably lodged against the inner or concave side of the handle part.

The instrument is therefore capable of being converted with facility from one type to the other, which will be found very serviceable for operative purposes under different conditions.

The invention is not limited to the special form or arrangement shown, but may be modified in various wrys within the scope thereof.

"he instrument consists of but live parts which can be readily separated to be cleaned or sterilized.

I claim 1. A speculum comprising apair of blades, a bail having hinge pins at its ends, connecting the rear ends of the blades, and an adjusting screw between the bail and one of the blades, said bail being engageable with the other blade to swing the same on the hinge.

2. A speculum comprising a pair of blades, a bail having hinge pins at its ends, connecting the rear ends of the blades, one of the blades having stops to prevent movement of the bail with respect thereto in one direction, and an adjusting screw between the bail and the other blade.

3. A speculum comprising a pair of blades, a' bail having hinge pins detachably connecting the rear ends of the blades, and a detachable screw connection between said bail and one of the blades, said bail being engageable with the other blade to swing the same on the hinge.

4:. A convertible speculum comprising two Copies of this patent may be blades, and means to hinge the same together to form a double-bladed speculum, said means being detachable to permit disjointing of the blades, and the rear ends of said blades being shaped to fit together in lapped relation, to form a single-bladed speculum, said means being then engageable to hold the blades together.

5. A speculum comprising two blades c0nvertible to either opposed or lapped relation, to produce either a double bladed or a single bladed instrument, and means to hold the blades together ineither of said relations.

6. A speculum comprising two blades the rear ends of which may be hinge-jointed or lap-jointed to each other, to form either a double bladed or single bladedinstrument, and means to hold thesaid ends together, in either relation.

In testimony whereof, I do atlix my signature in presence of two witnesses.

CHARLES VERBSKY. Witnesses.

. JOHN A. BQMMHARDT,

M. J. MARTIN.

obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. 0. 

